The presentation discusses principles of sustainable agriculture. It covers topics like using legume crops and recycling to sustainably source nitrogen for plants. It also addresses managing water resources through irrigation systems, drought-resistant crops, and reducing loss. The document discusses techniques for preventing soil erosion like no-till farming and wind breaks. It notes pressure on land from a growing population and the need for sustainable energy and economic practices in agriculture.

4. Topic of the Presentation is …

5. Sustainable agriculture
• Sustainable agriculture is the study of
relationships between organisms and
their environment.

6.  Sustainability can be understood as an ecosystem approach to agriculture.
 Possible sources of nitrogen that would, in principle, be available indefinitely, include:
 Recycling
 growing legume crops
 industrial production
 genetically engineering
Farming and natural resources

7.  In some areas, sufficient rainfall is available for crop growth, but many other areas
require irrigation.
develop drought-resistant farming systems policy and management actions:
 improving water
 providing incentives drought-tolerant crop
 reduced-volume irrigation systems
 reduce water loss
 not planting at all
Water

8.  Soil erosion is fast becoming one of the worlds greatest problems.
Some Soil Management techniques—
 No-till farming
 Keyline design
 Growing wind breaks to hold the soil
 Incorporating organic matter
 Stop using chemical fertilizers
 Protecting soil from water runoff

9.  As the global population increases and demand for food increases, there is
pressure on land resources
 Land can also be considered a finite resource on Earth

10. Energy for Agriculture
In industrial agriculture, energy is used in on-farm mechanization,
food processing, storage, and transportation processes.

11. Economics
 Socioeconomic aspects of sustainability are also partly understood.
 Given the finite supply of natural resources at any specific cost and location

12. Methods
 The Great Irish Famine (1845–1849) is a well-known
example of the dangers of monoculture.

13. Soil treatment
 Soil steaming can be used as an ecological alternative to chemicals for soil
sterilization.
 Community and farm composting of kitchen, yard, and farm organic waste can
provide
 This composting could potentially be a reliable source of energy.